Hi Graffitti Blast you have spoiled my fun I was waiting for my mate Clint to tell me what to do!! There is no DMA on SCSI in Windows XP also there is not settings in The Device Manager for the Scsi all you will see on the Tabs for your SCSI General/Drivers/Resources and in none of them will you find any settings. But your are right about the DMA it is not available for SCSI !!! I have contacted Plextor for an answer on this Issue so as soon as I hear anything I will let you all know !!!

So with you knowing so much about Plextors and SCSI can you answer Stuart1's first question then which was " When i run NERO cd speed it tells me the burst rate is 1MB/s, which for an ultascsi device is pants as it should be around 20MB/s so what is happening and why won't Plextor answer e-mail questions !!!

I will tell you what this tells me it tells me they have no Idea how to cure this Problem but they could at least tell us this !!! And as you say they return yours always and very swiftly so prove it then and send them an e-mail about this Issue and tell us what their reply says !!! (If you ever get a reply )

So with you knowing so much about Plextors and SCSI can you answer Stuart1's first question then which was " When i run NERO cd speed it tells me the burst rate is 1MB/s, which for an ultascsi device is pants as it should be around 20MB/s so what is happening and why won't Plextor answer e-mail questions !!!

For some reason the Plextor PX-40Tx does not cache sectors. This is pretty normal for audio sectors but weird for data sectors. So when the burst rate is measured the drive keeps reading the same sectors over and over again instead of returning the data from its buffer.

Thanks for the Info cdrfreak as I have still not heard from Plextor yet and this will help !!! It is not only "his" problem Clint it is everyones including mine if you had read all the Thread you would have known that !!![:p]